EP0618348A1 - Douille pour porte-pic avec bride de rétention - Google Patents

Douille pour porte-pic avec bride de rétention Download PDF

Info

Publication number
EP0618348A1
EP0618348A1 EP94100735A EP94100735A EP0618348A1 EP 0618348 A1 EP0618348 A1 EP 0618348A1 EP 94100735 A EP94100735 A EP 94100735A EP 94100735 A EP94100735 A EP 94100735A EP 0618348 A1 EP0618348 A1 EP 0618348A1
Authority
EP
European Patent Office
Prior art keywords
sleeve
diameter
bit holder
axial bore
bit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP94100735A
Other languages
German (de)
English (en)
Inventor
Randall W. Ojanen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Valenite LLC
Original Assignee
Valenite LLC
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Valenite LLC filed Critical Valenite LLC
Publication of EP0618348A1 publication Critical patent/EP0618348A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21C—MINING OR QUARRYING
    • E21C35/00—Details of, or accessories for, machines for slitting or completely freeing the mineral from the seam, not provided for in groups E21C25/00 - E21C33/00, E21C37/00 or E21C39/00
    • E21C35/18—Mining picks; Holders therefor
    • E21C35/19—Means for fixing picks or holders
    • E21C35/197—Means for fixing picks or holders using sleeves, rings or the like, as main fixing elements

Definitions

  • This invention relates to bit holders for cutting tools and more particularly to a non-rotatable sleeve for use with such bit holders.
  • 5,088,797 provides a friction-fitted sleeve which has limited engagement with the internal surface of the bit holder bore to aid in removal.
  • This sleeve requires considerable machining, both before and after heat treatment, to provide the .002" to .005" tolerances required to make it work well. This is an expensive consideration.
  • U.S. Pat. No. 5,098,167 suggests the use of threaded sleeves to avoid rotation; however, this also adds to the cost and time of replacement.
  • U. S. Pat. No. 4,247,150 provides for the use of an oil channel between the sleeve and the inner surface of the bit holder bore, with means for injecting oil under pressure to aid in removal. This solution also requires extra machining and added cost.
  • 3,865,437 and 4,084,856 dislcose rotatable tools or sleeves having a plurality of projections formed at one end to engage the rearmost portion of a tool holder.
  • These tools are expensive to manufacture since the projections require special machining operations because they depart from true cylindricality.
  • Yet another object of the invention is the enhancemt of non-rotatable tool sleeves for cutting bit holders.
  • a bit holder for rotatably mounting a cutting bit
  • the cutting bit comprises an elongated member having a cutting element at one end thereof and a substantially cylindrical shank at the other end thereof.
  • the bit holder comprises a body having an axial bore therein having at least one given diameter and a particular inside surface configuration.
  • a non-rotatable, diametrically compressible sleeve is mounted in the axial bore prior to the insertion of the cutting bit.
  • the sleeve has an outer surface configuration intimately matching the particular inside configuration and is in substantial engagement therewith over its entire length.
  • a collar 28 at one end of sleeve 26 has a diameter much larger than the given diameter 22 whereby the collar engages a face 30 of the body 10 and limits the axial penetration of sleeve 26 into axial bore 20.
  • the sleeve 26 has an outer surface configuration 32 intimately matching the particular inside configuration 24 which is present in bore 20 and substantially in engagement therewith over its length. See Fig. 2.
  • the sleeve 26 has a diameter 34 larger than given diameter 22 before insertion into axial bore 20 and a compressed diameter substantially matching given diameter 22 after insertion into axial bore 20.
  • the sleeve 26 is provided with an axial slot 36 which runs its entire length. The slot 36 has a width which decreases upon insertion into the axial bore 20 and provides the compressed diameter.
  • the sleeve 26 can have a diameter of between .990" and 1.00", which is .005" to .025" larger than the bore 20. Tolerances of this magnitude require machining only prior to heat treating. Because the sleeve is manufactured from substantial material, a hammer can be used to drive it into the bore and the rotatable cutting bit can be subsequently installed and fixed in place by the ring 42.
  • FIG. 4 an alternate embodiment is shown.
  • a bit holder 10 for rotatably mounting a cutting bit 12 which can be the same as that shown with reference to Fig.1.
  • a non-rotatable, diametrically compressible sleeve 26a is mounted in axial bore 20 prior to the insertion of cutting bit 12.
  • a collar 28a at one end of sleeve 26a has a diameter much larger than the given diameter 22 whereby the collar engages a face 30 of the body 10 and limits the axial penetration of sleeve 26 into axial bore 20.
  • the sleeve 26a has an outer surface configuration 32a intimately matching the particular inside configuration 24 which is present in bore 20 and substantially in engagement therewith over its length. See Fig. 4.
  • the sleeve 26a has a diameter 34a larger than given diameter 22 before insertion into axial bore 20 and a compressed diameter substantially matching given diameter 22 after insertion into axial bore 20.
  • the sleeve 26a is provided with an axial slot 36a which runs its entire length.
  • the slot 36a has a width which decreases upon insertion into the axial bore 20 and provides the compressed diameter.
  • sleeve 26a i.e., the end of sleeve 26a remote from collar 28a is provided with additional sleeve retaining means 44 in the form of a circumferential flange 46, continuous thereabout except for the slot 36a.
  • the diameter of the flange 46 is about between 1 to about 2.5% of the diameter 34a.
  • the upper surface 48 of flange 46 abuts the rearmost surface 50 of bit holder 10.
  • a chamfer 52 can be provided on what will be the leading edge of the retaining means 44.
  • the improvements provided by the circumferential flange include ease of manufacture with its consequent economies, together with greater holding power and less damage to the bit holder 10 during use since the greater area of contact minimizes chipping of the rearmost surface 50.
  • the above-mentioned holding power has been shown to increase from about 500 to 600 pounds to about 1000 to 1200 pounds, a factor of 2, upon employment of the retaining flange.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Drilling And Exploitation, And Mining Machines And Methods (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
EP94100735A 1993-01-22 1994-01-19 Douille pour porte-pic avec bride de rétention Withdrawn EP0618348A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US7692 1993-01-22
US08/007,692 US5303984A (en) 1992-11-16 1993-01-22 Cutting bit holder sleeve with retaining flange

Publications (1)

Publication Number Publication Date
EP0618348A1 true EP0618348A1 (fr) 1994-10-05

Family

ID=21727635

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94100735A Withdrawn EP0618348A1 (fr) 1993-01-22 1994-01-19 Douille pour porte-pic avec bride de rétention

Country Status (2)

Country Link
US (1) US5303984A (fr)
EP (1) EP0618348A1 (fr)

Families Citing this family (99)

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GB9225408D0 (en) * 1992-12-04 1993-01-27 Hydra Tools Int Plc Mineral cutter tooling system
US5628549A (en) * 1995-12-13 1997-05-13 Kennametal Inc. Cutting tool sleeve rotation limitation system
US5730502A (en) * 1996-12-19 1998-03-24 Kennametal Inc. Cutting tool sleeve rotation limitation system
US6685273B1 (en) * 2000-02-15 2004-02-03 The Sollami Company Streamlining bit assemblies for road milling, mining and trenching equipment
DE10044369C2 (de) * 2000-09-08 2003-03-27 Michael Steinbrecher Schnellwechselhaltersystem für Werkzeuge auf Walzen
US6786557B2 (en) 2000-12-20 2004-09-07 Kennametal Inc. Protective wear sleeve having tapered lock and retainer
US6854810B2 (en) * 2000-12-20 2005-02-15 Kennametal Inc. T-shaped cutter tool assembly with wear sleeve
US6851758B2 (en) * 2002-12-20 2005-02-08 Kennametal Inc. Rotatable bit having a resilient retainer sleeve with clearance
SE528783C2 (sv) * 2004-10-05 2007-02-13 Seco Tools Ab Verktyg där spets och hållare har radiella stödytor
US8109349B2 (en) * 2006-10-26 2012-02-07 Schlumberger Technology Corporation Thick pointed superhard material
US7950746B2 (en) * 2006-06-16 2011-05-31 Schlumberger Technology Corporation Attack tool for degrading materials
US7568770B2 (en) 2006-06-16 2009-08-04 Hall David R Superhard composite material bonded to a steel body
US7980582B2 (en) * 2006-08-09 2011-07-19 Atc Leasing Company Llc Front tow extended saddle
US7669674B2 (en) * 2006-08-11 2010-03-02 Hall David R Degradation assembly
US7320505B1 (en) 2006-08-11 2008-01-22 Hall David R Attack tool
US7637574B2 (en) 2006-08-11 2009-12-29 Hall David R Pick assembly
US7445294B2 (en) * 2006-08-11 2008-11-04 Hall David R Attack tool
US8485609B2 (en) * 2006-08-11 2013-07-16 Schlumberger Technology Corporation Impact tool
US7464993B2 (en) * 2006-08-11 2008-12-16 Hall David R Attack tool
US7384105B2 (en) * 2006-08-11 2008-06-10 Hall David R Attack tool
US7997661B2 (en) 2006-08-11 2011-08-16 Schlumberger Technology Corporation Tapered bore in a pick
US8414085B2 (en) * 2006-08-11 2013-04-09 Schlumberger Technology Corporation Shank assembly with a tensioned element
US8622155B2 (en) 2006-08-11 2014-01-07 Schlumberger Technology Corporation Pointed diamond working ends on a shear bit
US8567532B2 (en) 2006-08-11 2013-10-29 Schlumberger Technology Corporation Cutting element attached to downhole fixed bladed bit at a positive rake angle
US7871133B2 (en) 2006-08-11 2011-01-18 Schlumberger Technology Corporation Locking fixture
US9145742B2 (en) 2006-08-11 2015-09-29 Schlumberger Technology Corporation Pointed working ends on a drill bit
US8714285B2 (en) 2006-08-11 2014-05-06 Schlumberger Technology Corporation Method for drilling with a fixed bladed bit
US8500209B2 (en) * 2006-08-11 2013-08-06 Schlumberger Technology Corporation Manually rotatable tool
US7338135B1 (en) * 2006-08-11 2008-03-04 Hall David R Holder for a degradation assembly
US8033616B2 (en) 2006-08-11 2011-10-11 Schlumberger Technology Corporation Braze thickness control
US7419224B2 (en) * 2006-08-11 2008-09-02 Hall David R Sleeve in a degradation assembly
US7413258B2 (en) * 2006-08-11 2008-08-19 Hall David R Hollow pick shank
US8449040B2 (en) 2006-08-11 2013-05-28 David R. Hall Shank for an attack tool
US9051795B2 (en) 2006-08-11 2015-06-09 Schlumberger Technology Corporation Downhole drill bit
US8201892B2 (en) 2006-08-11 2012-06-19 Hall David R Holder assembly
US8123302B2 (en) 2006-08-11 2012-02-28 Schlumberger Technology Corporation Impact tool
US8007051B2 (en) 2006-08-11 2011-08-30 Schlumberger Technology Corporation Shank assembly
US8590644B2 (en) * 2006-08-11 2013-11-26 Schlumberger Technology Corporation Downhole drill bit
US7413256B2 (en) * 2006-08-11 2008-08-19 Hall David R Washer for a degradation assembly
US8215420B2 (en) * 2006-08-11 2012-07-10 Schlumberger Technology Corporation Thermally stable pointed diamond with increased impact resistance
US8960337B2 (en) 2006-10-26 2015-02-24 Schlumberger Technology Corporation High impact resistant tool with an apex width between a first and second transitions
US9068410B2 (en) 2006-10-26 2015-06-30 Schlumberger Technology Corporation Dense diamond body
US8485756B2 (en) * 2006-12-01 2013-07-16 David R. Hall Heated liquid nozzles incorporated into a moldboard
US8403595B2 (en) * 2006-12-01 2013-03-26 David R. Hall Plurality of liquid jet nozzles and a blower mechanism that are directed into a milling chamber
US7976239B2 (en) * 2006-12-01 2011-07-12 Hall David R End of a moldboard positioned proximate a milling drum
US9051794B2 (en) 2007-04-12 2015-06-09 Schlumberger Technology Corporation High impact shearing element
US7926883B2 (en) * 2007-05-15 2011-04-19 Schlumberger Technology Corporation Spring loaded pick
US8038223B2 (en) 2007-09-07 2011-10-18 Schlumberger Technology Corporation Pick with carbide cap
CA2639118A1 (fr) * 2007-09-04 2009-03-04 Kenneth Monyak Manchon de retenue hybride pour outil insere dans un bloc
US8540037B2 (en) 2008-04-30 2013-09-24 Schlumberger Technology Corporation Layered polycrystalline diamond
US8061783B2 (en) * 2008-08-14 2011-11-22 Kennametal Inc. Bit holder block with non-rotating wear sleeve
US7789468B2 (en) * 2008-08-19 2010-09-07 The Sollami Company Bit holder usable in bit blocks having either of a cylindrical or non-locking taper bore
US8540320B2 (en) * 2009-04-02 2013-09-24 The Sollami Company Slotted shank bit holder
US8322796B2 (en) 2009-04-16 2012-12-04 Schlumberger Technology Corporation Seal with contact element for pick shield
US8701799B2 (en) 2009-04-29 2014-04-22 Schlumberger Technology Corporation Drill bit cutter pocket restitution
US20100326740A1 (en) * 2009-06-26 2010-12-30 Hall David R Bonded Assembly Having Low Residual Stress
US8262168B2 (en) 2010-09-22 2012-09-11 Hall David R Multiple milling drums secured to the underside of a single milling machine
US10598013B2 (en) 2010-08-27 2020-03-24 The Sollami Company Bit holder with shortened nose portion
US9879531B2 (en) 2014-02-26 2018-01-30 The Sollami Company Bit holder shank and differential interference between the shank distal portion and the bit holder block bore
US10385689B1 (en) 2010-08-27 2019-08-20 The Sollami Company Bit holder
US11261731B1 (en) 2014-04-23 2022-03-01 The Sollami Company Bit holder and unitary bit/holder for use in shortened depth base blocks
US10337324B2 (en) 2015-01-07 2019-07-02 The Sollami Company Various bit holders and unitary bit/holders for use with shortened depth bit holder blocks
US10072501B2 (en) 2010-08-27 2018-09-11 The Sollami Company Bit holder
IT1402607B1 (it) * 2010-11-10 2013-09-13 Valentini Antonio Srl Apparato di frantumazione per macchina frangisassi e metodo di montaggio di un dente in un apparato di frantumazione.
US10107097B1 (en) 2012-10-19 2018-10-23 The Sollami Company Combination polycrystalline diamond bit and bit holder
US9909416B1 (en) 2013-09-18 2018-03-06 The Sollami Company Diamond tipped unitary holder/bit
US10180065B1 (en) 2015-10-05 2019-01-15 The Sollami Company Material removing tool for road milling mining and trenching operations
US10260342B1 (en) 2012-10-19 2019-04-16 The Sollami Company Combination polycrystalline diamond bit and bit holder
US9988903B2 (en) 2012-10-19 2018-06-05 The Sollami Company Combination polycrystalline diamond bit and bit holder
US10323515B1 (en) 2012-10-19 2019-06-18 The Sollami Company Tool with steel sleeve member
US10105870B1 (en) 2012-10-19 2018-10-23 The Sollami Company Combination polycrystalline diamond bit and bit holder
US10415386B1 (en) 2013-09-18 2019-09-17 The Sollami Company Insertion-removal tool for holder/bit
US9976418B2 (en) 2014-04-02 2018-05-22 The Sollami Company Bit/holder with enlarged ballistic tip insert
US10968739B1 (en) 2013-09-18 2021-04-06 The Sollami Company Diamond tipped unitary holder/bit
US10767478B2 (en) 2013-09-18 2020-09-08 The Sollami Company Diamond tipped unitary holder/bit
US10577931B2 (en) 2016-03-05 2020-03-03 The Sollami Company Bit holder (pick) with shortened shank and angular differential between the shank and base block bore
US10794181B2 (en) 2014-04-02 2020-10-06 The Sollami Company Bit/holder with enlarged ballistic tip insert
US10995613B1 (en) 2013-09-18 2021-05-04 The Sollami Company Diamond tipped unitary holder/bit
US10876402B2 (en) 2014-04-02 2020-12-29 The Sollami Company Bit tip insert
US10947844B1 (en) 2013-09-18 2021-03-16 The Sollami Company Diamond Tipped Unitary Holder/Bit
US10633971B2 (en) 2016-03-07 2020-04-28 The Sollami Company Bit holder with enlarged tire portion and narrowed bit holder block
US11168563B1 (en) 2013-10-16 2021-11-09 The Sollami Company Bit holder with differential interference
US9212553B2 (en) 2013-11-08 2015-12-15 The Sollami Company Dirt and rock cutting bit tool
US9028008B1 (en) 2014-01-16 2015-05-12 Kennametal Inc. Cutting tool assembly including retainer sleeve with compression band
US11339656B1 (en) 2014-02-26 2022-05-24 The Sollami Company Rear of base block
US11339654B2 (en) 2014-04-02 2022-05-24 The Sollami Company Insert with heat transfer bore
US11891895B1 (en) 2014-04-23 2024-02-06 The Sollami Company Bit holder with annular rings
US9702251B2 (en) 2015-03-17 2017-07-11 Kennametal Inc. Cutting tool assembly including retainer sleeve with retention member
USD778967S1 (en) * 2015-06-26 2017-02-14 Pengo Corporation Step shank tooth holder
US10502056B2 (en) 2015-09-30 2019-12-10 The Sollami Company Reverse taper shanks and complementary base block bores for bit assemblies
US10612376B1 (en) 2016-03-15 2020-04-07 The Sollami Company Bore wear compensating retainer and washer
US10107098B2 (en) 2016-03-15 2018-10-23 The Sollami Company Bore wear compensating bit holder and bit holder block
US10612375B2 (en) 2016-04-01 2020-04-07 The Sollami Company Bit retainer
US10876401B1 (en) 2016-07-26 2020-12-29 The Sollami Company Rotational style tool bit assembly
USD844684S1 (en) 2017-02-22 2019-04-02 American Carbide Tools Innovations, LLC Rotatable cutting bit
US10968738B1 (en) 2017-03-24 2021-04-06 The Sollami Company Remanufactured conical bit
US11187080B2 (en) 2018-04-24 2021-11-30 The Sollami Company Conical bit with diamond insert
US11279012B1 (en) 2017-09-15 2022-03-22 The Sollami Company Retainer insertion and extraction tool
US11103939B2 (en) 2018-07-18 2021-08-31 The Sollami Company Rotatable bit cartridge

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Publication number Priority date Publication date Assignee Title
US3749449A (en) * 1971-10-13 1973-07-31 Cincinnati Mine Machinery Co Means for removably affixing cutter bit and lug assemblies to driven elements of a mining machine or the like
US3865437A (en) * 1973-08-16 1975-02-11 Kennametal Inc Rotary mining tool retaining structure
US4084856A (en) * 1976-02-09 1978-04-18 Fansteel Inc. Self-retaining sleeve and bit
FR2428735A1 (fr) * 1978-06-15 1980-01-11 Voest Alpine Ag Ensemble pic et porte-pic pour outil de haveuse
US4201421A (en) * 1978-09-20 1980-05-06 Besten Leroy E Den Mining machine bit and mounting thereof
DE2854307A1 (de) * 1978-12-15 1980-07-03 Kennametal Inc Halter zur anbringung von meisseln, insbesondere von rundschaftmeisseln an bergbaulichen gewinnungs- und streckenvortriebsmaschinen
DE3307910A1 (de) * 1983-03-05 1984-09-27 Fried. Krupp Gmbh, 4300 Essen Werkzeuganordnung mit einem rundschaftmeissel
EP0264015A1 (fr) * 1986-10-07 1988-04-20 Kennametal Inc. Mèche de coupe rotative
US4836614A (en) * 1985-11-21 1989-06-06 Gte Products Corporation Retainer scheme for machine bit
US5088797A (en) * 1990-09-07 1992-02-18 Joy Technologies Inc. Method and apparatus for holding a cutting bit
US5098167A (en) * 1990-10-01 1992-03-24 Latham Winchester E Tool block with non-rotating, replaceable wear insert/block

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US4217150A (en) * 1974-09-05 1980-08-12 Allegheny Ludlum Steel Corporation Corrosion resistant austenitic steel
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SU1461907A1 (ru) * 1987-02-09 1989-02-28 В.А.Ленин Устройство дл креплени резцов горных машин
JP2617351B2 (ja) * 1989-05-15 1997-06-04 株式会社新川 ワイヤ接続不良検出方法

Patent Citations (13)

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Publication number Priority date Publication date Assignee Title
US3749449A (en) * 1971-10-13 1973-07-31 Cincinnati Mine Machinery Co Means for removably affixing cutter bit and lug assemblies to driven elements of a mining machine or the like
US3865437A (en) * 1973-08-16 1975-02-11 Kennametal Inc Rotary mining tool retaining structure
US4084856A (en) * 1976-02-09 1978-04-18 Fansteel Inc. Self-retaining sleeve and bit
US4247150A (en) * 1978-06-15 1981-01-27 Voest-Alpine Aktiengesellschaft Bit arrangement for a cutting tool
FR2428735A1 (fr) * 1978-06-15 1980-01-11 Voest Alpine Ag Ensemble pic et porte-pic pour outil de haveuse
US4201421A (en) * 1978-09-20 1980-05-06 Besten Leroy E Den Mining machine bit and mounting thereof
DE2854307A1 (de) * 1978-12-15 1980-07-03 Kennametal Inc Halter zur anbringung von meisseln, insbesondere von rundschaftmeisseln an bergbaulichen gewinnungs- und streckenvortriebsmaschinen
US4333687A (en) * 1978-12-15 1982-06-08 Kennametal Inc. Holder for the attachment of cutters to mining and tunnelling machines
DE3307910A1 (de) * 1983-03-05 1984-09-27 Fried. Krupp Gmbh, 4300 Essen Werkzeuganordnung mit einem rundschaftmeissel
US4836614A (en) * 1985-11-21 1989-06-06 Gte Products Corporation Retainer scheme for machine bit
EP0264015A1 (fr) * 1986-10-07 1988-04-20 Kennametal Inc. Mèche de coupe rotative
US5088797A (en) * 1990-09-07 1992-02-18 Joy Technologies Inc. Method and apparatus for holding a cutting bit
US5098167A (en) * 1990-10-01 1992-03-24 Latham Winchester E Tool block with non-rotating, replaceable wear insert/block

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